Grain-sampling mechanism



June 16, 1936; F. F. RQSEWARNEv 2,044,102

GRAIN SAMPLING 'MECHNISM Filed Oct. 4,. 1934 4 Sheets-Sheet' 5 I I V" 22 o Ft .5T a l '4-7 7 j J5 -2 i n l Aw l l .30 a

j /f 5" 43 i wem 58 1 l l f/ l F i, i V 14 wfy Bos-Wam June 16, 1936- F.F. Rosi-:WARNE GRAIN SAMPLING MECHANISM Filed Oct. 4, 1954LIKSI'leetS-SheeiI 4 CJ f Cil

Patented June 16, 1936 UNITED STATES lATENT OFFICE 6 Claims.

The present invention relates to mechanism for withdrawing from a massof grain, beans and the like samples thereof simultaneously with thedelivery of the mass to containers for storage or shipment, and to meansfor identifying such samples with the mass from which the same arewithdrawn, and to receptacles for the samples adapted to be so appliedto said mechanism as to receive such samples only; and the object of theinvention is, generally, to provide improved mechanism, means andreceptacles of that character and in combinations; and, moreparticularly, to provide certain forms and embodiments of the inventionwhereby its purposes may be attained.

These and any other and more specific objects hereinafter appearing areattained by, and the invention finds preferable embodiment in, thestructures and devices hereinafter particularly described in the body ofthis specification and illustrated by the accompanying drawings, inwhich:

Figure l is a top plan View of mechanism for withdrawing samples ofgrain, beans or the like from a bin or its discharge spout which isshown in horizontal section taken on line I I of Figure 2;

Figure 2 is an elevational front View thereof partially sectionedvertically on line 2 2 of Figure 1;

Figure 3 is an elevational right hand side view of the same, the gatevalve being shown in open position; f

Figure 4 is a horizontal sectional Aview thereof taken on line 4 4 ofFigure 3;

Figure 5 is a vertical sectional View of the same taken on line 5 5 ofFigure 6;

Figure 6 is a Vertical sectional View of saidn mechanism taken on line 66 of Figure 5;

Figure 'l is a top plan view of receptacle for said samples and adjacentparts partially sectioned on line 'I 'I of Figure 8;

Figure 8 is a vertical sectional view thereof taken on line 8 8 ofFigure 7;

Figure 9 is a vertical sectional view of the same taken on line 9 9 ofFigure 8;

Figure 10 is a top plan View of parts of saidv receptacle one of suchparts being sectioned horizontally on line 1 1 of Figure 8;

Figure 11 is a like view of said parts in another position;

' Figure 12 is a vertical sectional View of parts of said receptacletaken on line I2 I2 of Figure 11;

Figure 13 is a Vertical sectional View (enlarged) of parts of saidmechanism taken on line 5 5 of Figure 6;

Figure 14 is a view of a paper strip having markings for identifying thesamples with the mass of grain from which they were withdrawn. i;

In the embodiment of the invention illustrated by these drawings, amechanism is shown for withdrawing samples of grain, beans or the likepassing through the discharge spout I of the bin of a warehouse,elevator, etc., said spout having 1'0 a gate valve 2 slidablehorizontally in bearings 3, the grain, etc. indicated at 4 resting onthis gate in its closed position shown in Figures 1, 2 and passing bygravity out of the bin when the gate is slid outwardly to open positionseen in Figures 3, 4. When this gate is opened, the most of the mass ofgrain falls through the lower portion 5 of the spout and may be receivedin a suitable vessel or bag 6 for storage or shipment, while a smallerportion of the grain falls through an opening 'I in the upper wall 8 ofa cross-sectionally round chute 9 whose inner end I0 having said openingextends into said spout immediately below the gate when closed, as shownin Figure 2. i

This chute contains journalled at II in its ends 5- a helical conveyorI2 rotatable to feed the grain samples through the chute and through itsopening I3 in the right hand end of its bottom wall I4 and thus deliverthesamples into a receptacle, h the can I5. i

The conveyor has a gear I6 on its shaft portion with which meshes adriving gear I'I rotatable on a hollow shaft I8 which is rotatable inbearings I9 in the housing 20. This gear I'I is rotated by Y a spiralspring 2l whose inner end is secured at 22 thereto and whose outer endis engaged at 23 by an arm 24 of a sleeve 25 rotatable on the hollowshaft I8. A gear 26 turnable on this sleeve 25 has a pawl 2l engagingratchet teeth 28 on the hub portion 29 of said sleeve so that the springo may be wound up or compressed by the toothed rack 3U meshing with saidgear 26 and extending parallel with the gate 2 being mounted at 3|thereon so as to move horizontally therewith in the gates slidingmovement. 45

When this gate is drawn outwardly so that the grain may fall through thespout, the gear 2B is rotated to wind up the spring. This spring thenunwinding rotates the gear I'I and the gear I6 on the conveyors shaftportion thus causing the conveyor to operate as above explained.

Means are provided for delivering identically marked portions of a paperstripl 32 (shown in Figure 14) to the bag 6 containing the mass of grainand to the receptacle or can I5 containing 5'5 the samples thereof, asWell as to the operator of the mechanism. This strip has sections eachcomprising a forward main part 33 and smaller parts 34, 35 side by sidebehind it, said parts 34, 35 being desirably separated by a slit 36 cutthrough the paper strip. All these parts 33, 34, 35 of each section ofthe strip are marked identically as by the numbers (499, 500, 501)printed thereon indicated in Figure 14. This strip is Wound on a drum 31turnable on a spindle 38 extending through the hollow shaft I8 andhaving a threaded inner end 39 turned at 40 into the inner side 4I ofthe housing 20, and having also a knurled handle 68 for unscrewing thespindle to remove the same so that the drum may be withdrawn (the cover43 being opened) to apply to the drum new rolls of paper strips.

'Ihe hollow shaft I8 has a key pin 44 engaging in the drum to rotate thesame and the drum has a radial slot 6I receiving shaft I8 so that thedrum may be `moved upwardly sidewise out of the housing. A sleeve 45 iskeyed at 46 to the hollow shaft. A gear 41 is rotatable on this sleeveand has a pawl 48 engaging the teeth 49 of its hub portion 50 (Figure13). A toothed rack 5I parallel with rack 36 and movable with the gate 2meshes with this gear 41 to rotate the same and the drum in order topush the free end of the strip 32 through the slit 52 when the gate isdrawn outwardly.

When thisis done, the part 33 of the strip projects from said casing 20and may be removed by the operator, but the rearward parts 34, 35 of thesame section of the strip are severed therefrom by a cutter blade 53(Figure 6) whose carrying lever 54 is fulcrumed at 55, this blade beingforced downwardly against pressure of a spring 56, to sever said parts34, 35, by the cam arm 51 of said lever striking the part 58 of the rack5I when the gate is drawn to its outermost position. These parts 34, 35of the strip when thus severed fall on opposite sides of a pointedpartition 59 so that part 34 falls through a passage 62 into the bag 6with the mass of the grain, while part 35 falls though a passage 63 intothe can or receptacle I5 with the grain samples (Figure 5).

The hollow shaft I8 has handle wings 42 for manually turning the same.

The receptacle for the grain samples, designated generally I5, with itsvarious parts is illustrated in Figures 7, 8, 9, 10, 11, 12. Thisreceptacle comprises the vessel or can 64 desirably of glass having ametal top or cover 65 screwed on its open upper end as shown in Figure8. This cover has a at horizontal metal plate 66 bifurcated at 61 toslip over and straddle the downwardly extending neck portion 68 of thechute 9 (communicating with its discharge opening I3 as seen in Figures'7 and 8) to removably mount the receptacle in place. VSaid cover hasinside it a parallel plate 69 on which is centrally pivoted at 10 aparallel shutter plate 1I. 'I'he cover and the shutter plate and theplate 69 have round openings 12, 13, 14 respectively in registrationwith said opening I3 in the operative position of the mechanism shown inFigure 8, so that the grain samples may fall from the chute into the can64.

The shutter plate 1I has an arcuate slot therethrough comprising a rstportion 15 of greater radius and a second portion 16 of less radiusconnected by a radial portion 11. The portion 'I5 has at its end aninwardly radial extension 18 and an outwardly radial extension 19, andthe portion 16 has at its end an inwardly radial extension 80.

A latch 8| pivotally mounted at 82 on plate 69 extends upwardly throughsaid arcuate slot and through a slot 83 in the cover 65. Before thecover is screwed on the can 64 the shutter plate 'I'I is turned so thatthis latch engages in extension 18 of slot portion 15 as shown in Figure10, so that the shutter plate is held in the position there shown inwhich its opening 13 is not in registration with the covers opening 12.The cover being now applied to the can the receptacle is mounted on saidneck portion 68 and as the bifurcated plate 66 is pushed to its limitedinward position shown in Figures 7 and 8, the extremity 84 of said neckportions outwardly extending horizontal portion 85 strikes the upper endof said latch as shown lin Figure S and turns it against its spring 86out of extension 18 and into the main part of portion 15 of the arcuateslot so that the spiral spring 81 is permitted to turn the shutter plateto bring its opening 13 into registration with openings 12 and 14 asseen in Figure 8 in order that the grain may run into the can. Thisturning movement of the shutter plate is stopped by the side 88 of theslots portion 11 striking the latch, and the shutter plate is held inthis position during the lling of the can.

When the receptacle is lled sufliciently, it is withdrawn from the necksextension 85, and the latchs spring 86 draws the latch out of thearcuate slots portion 1'! and into its portion 16 whereupon the spiralspring 81 is permitted to further rotate the shutter plate to theposition seen in Figure 11 wherein its opening 13 is not in registrationwith the covers opening 12 and the can is thus sealed. This secondturning movement of the shutter plate is stopped by the upwardly turnedend 89 of a spring latch 9D engaging in the extension 19 of portion 'I5of the arcuate slot.

The can 64 and cover 65 may be secured together with seals of any commonform (not shown) which must be broken to remove the cover. When thecover is removed, the spring latch 90 may be released by drawing its pinhandle 9I downwardly (Figure 12).

The invention being intended to be pointed out in the claims, is not tobe limited to or by details of construction of any particular embodimentthereof illustrated by the drawings or hereinbefore described.

I claim:

1. Mechanism for withdrawing samples of a mass of grain or the likepassing through a discharge spout, comprising: a chute for the sampleshaving an inlet from the spout; a gate valve normally closing the spoutand the chute and openable to permit the mass of the grain to passoutwardly through the spout and a less amount of the grain as samplesthereof to simultaneously pass outwardly through the chute; a conveyorfor feeding the samples through the chute; means for initiating theoperation of the conveyor by the opening movement of the valve.

, 2. Mechanism for withdrawing samples of a mass of grain or the likepassing through a discharge spout, comprising: a chute for the sampleshaving an inlet from the spout; a valve normally closing the spout andthe chute and openable to permit the mass of the grain to pass outwardlythrough the spout and a less amount of the grain as samples thereof tosimultaneously pass outwardly through the chute; a conveyor for feedingthe samples through the chute; means for initiating the operation of theconveyor by the opening movement of the valve; means for rotatablymounting a paper roll comprising successive sections each section havingseparable parts disp-laying identical markings; means operable by themovement of the valve for projecting the free end of the roll and forseparating said parts; means for depositing said parts in the spout andchute respectively.

3. In combination: a chute for samples of grain or the like; a valvenormally closing the chute and openable to permit the samples to passoutwardly through the chute; a receptacle for the samples adapted to beremovably mounted on the chute at its outlet and having a turnable valveplate with an opening therethrough initially out of registration withsaid outlet, a spring urging said plate to a turned position whereinsaid opening and outlet are in registration to permit passage of thesamples therethrough into the receptacle; a latch releasably holding theplate in such non-registering initial position and movable to releasesaid plate by the engagement of the latch with a portion of the chute inthe mounting movement of the receptacle thereon.

4. In combination: a chute for samples of grain or the like; a valvenormally closing the chute and openable to permit the samples to passoutwardly through the chute; a receptacle for the samples adapted to beremovably mounted on the chute at its outlet and having a turnable valveplate with an opening therethrough initially out of registration withsaid outlet, a spring urging said plate to a turned position whereinsaid opening and outlet are in registration to permit passage of thesamples therethrough into the receptacle; a latch releasably holding theplate in such non-registering initial position and movable against aspring to release said plate by the engagement of the latch with aportion of the chute in the mounting movement of the receptacle thereonand to releasably hold the plate in such registering position, the latchbeing releasable from its position wherein it holds the plate in suchregistering position by withdrawing the receptacle from its mountedposition thus disengaging the latch from the chute and therebypermitting the farther turning movement of the plate to a positionwherein its opening is again out of registration with said outlet.

5. In combination: a chute for samples of grain or the like; a Valvenormally closing the chute and openable to permit the samples to passoutwardly through the chute; a receptacle for the samples adapted to beremovably mounted on the chute at its outlet and having a turnable valveplate with an opening therethrough initially out of registration withsaid outlet, a spring urging said plate to a turned position whereinsaid opening and outlet are in registration to permit passage of thesamples therethrough into the receptacle; a latch releasably holding theplate in such non-registering initial position and movable against aspring to release said plate by the engagement of the latch with aportion of the chute in the mounting movement of the receptacle thereonand to releasably hold the plate in such registering position, the latchbeing releasable from its position wherein it holds the plate in suchregistering position by withdrawing the receptacle from its mountedposition thus disengaging the latch from the chute and therebypermitting the farther turning movement of the plate to a positionwherein its opening is again out of registration with said outlet; amanually releasable latch for holding said plate in a position whereinits opening is out of registration with said outlet.

6. Mechanism for withdrawing samples of a mass of grain or the likepassing through a discharge spout, comprising: a chute for the sampleshaving an inlet from the spout; a valve normally closing the spout andthe chute and openable to permit the mass of the grain to pass outwardlythrough the spout and a less amount of the grain as samples thereof tosimultaneously pass outwardly through the chute; a conveyor for feedingthe samples through the chute; a spring for operating the conveyor;connections between the valve and the spring for tensioning the springby the opening movement of the Valve.

FERRY F. ROSEWARNE.

